【推荐1】阅读下面短文，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

According to a report by South China Morning Post, China will launch a hyperloop (超级高铁), also known    1    a super-high speed pipeline maglev system by 2035. If the project goes as    2    (plan), the new train will be the world’s fastest ground-based transport.

In the past few days, the Chinese government officers    3    (announce) the approval of the country’s first hyperloop line. Its length will be 175 kilometers, and it will pass between Shanghai    4    Hangzhou. The distance between the two cities can be covered in about three hours by car or an hour by high-speed train. But the hyperloop can reach the speed of 1000 km/h,    5    means the route can be completed in just 15 minutes.

The project will make China one of the pioneers in hyperloop technology,    6    (allow) faster travel between several major cities. The hyperloop provides    7    high-security level with low energy consumption. The advanced technology will    8    (absolute) bring China to a higher position in transport.

A super-fast hyperloop train in China has completed    9    (it) first test runs. These consisted of three test runs at a superconducting maglev test line in Datong, Shanxi province. However, the current tube available for trials measures only 2km long. It    10    (expect) to be extended to 60 km in the near future.

【推荐3】阅读下面短文， 在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

As the countdown to the 2022 Beijing Winter Olympics continues, the new high-speed railway line     1     (connect) the capital with Olympic host city Zhangjiakou has just entered service. It cuts the travel time between the two from three hours     2     47 minutes. But this isn’t just another bullet train. This beauty, which can run up to 350 kilometers per hour without a driver, has brought     3     is called “ the smart high-speed railway age”.

So what makes them “smart”? Well, the carriages     4     (equip) with 5G signals can detect any operational abnormalities with real-time data collected with sensors. Meanwhile, each individual seat has     5     (it) own touch-screen control panel and wireless charging docks. The trains can     6     (automatic) start, stop and adjust to the different speed limits when in     7     (operate). Back at the station, robots and facial recognition technologies can help passengers with directions, luggage and paperless check-ins.

Today, China is home to the world’s largest high-speed rail network, and the     8     (fast) commercially operating train—the Shanghai maglev. According to the China State Railway Group, 1,036 Fuxing bullet trains started their mission in 2017,     9     the series were first launched. Over the past 4 years, they     10     (send) over 100 million passengers across the country.

【推荐1】Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word or phrase that best fits each blank.

It has become a certain belief among the public     1     drinking at least eight glasses of water a day can improve health and wellbeing, Bottled water companies often repeat it to increase their sales but it is actually a silly idea. There is no evidence     2    (prove) the advantages of drinking eight glasses of water a day, scientists say.

The misunderstanding is caused from the suggestion that adults     3    (drink) 2. 5 liters of water daily. The important part of the suggestion that most of this quantity of water     4    (contain) in prepared foods, however, is usually ignored.

US researchers who reviewed the evidence concluded that most people do not need to worry about the amount of water they drink every day.     5    drinking water, they will be getting plenty of liquid in other ways. Caffeinated drinks such as tea, coffee, cola and alcohol can help reach the daily total. Less well known are the dangers of drinking too much water,     6     (cause) water poisoning, low salt levels and even death.

The review of research by Dan Negoianu, from the University of- Pennsylvania found that not     7    single study included the suggestion of drinking eight glasses of water a day.     8    one small study suggested that drinking water could result in fewer headaches, the results were not very important.

No studies showed any advantages to the color of the skin because of the increased water     9    (take) into bodies. Dehydration(脱水) can make skin     10    (pleasant) , but there was no clear evidence to support the idea that water helps people keep a youthful appearance. The researchers also found no evidence that drinking lots of water does some good to the body’s organs

【推荐2】阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The 19th-century American writer and naturalist Henry David Thoreau knew the     1    (important) of nature. Thoreau filled his books with observations about human life and     2    (it) basic need for nature.

On average, Americans spend about 10 hours a day in front of a computer or other electronic device     3     less than 30 minutes a day outdoors. That is a claim     4    (make) by David Strayer, a professor of psychology at the University of Utah. In his 2017 TEDTalk, Strayer     5    (explain) that all this time spent with technology is making our brains tired.

Using an electronic device-answering emails, listening to the news, looking at Facebook -    6    (put) a lot of pressure on the prefrontal cortex, the front of the brain. This area, Strayer explains, is important for critical     7    (think), problem-solving and decision-making. So, it is important to give the brain     8     rest. And being in nature, Strayer claims, helps refresh a brain that is tired from too much technology. Friends and family take time off and escape to nature for several days. Camping may be just     9     a tech-tired brain needs. Strayer's research team found that spending three days in nature without any technology is enough time for the brain to     10    (full) relax and reset itself.